The Chelan County PUD owns and operates the nation’s second largest nonfederal, publicly owned hydroelectric generating system. Two of the District’s hydro projects, ROCKY REACH and ROCK ISLAND, are part of an 11-dam system on the Columbia River.
 

		The District’s third hydro project, LAKE CHELAN, serves a dual purpose of generating power and regulating the level of 55-mile-long Lake Chelan, the deepest body of fresh water in North America. The District's three hydroelectric generating projects have a combined total generating capacity of over 2 million kilowatts of power. The three produce about 11 billion kilowatts of power each year that is transmitted throughout the Pacific Northwest over a 16,000-mile grid of high-voltage transmission lines.

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